名词短语
中文翻译：硬岩隧道掘进同义词
同义词：
['hard rock tunneling', 'hard rock tunneling operation']
例句：
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1. The construction of the new highway will require hard-rock tunnel boring technology.
新高速公路的建设将需要硬岩隧道掘进技术。
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2. The tunnel boring machine is a crucial tool for drilling through hard rock.
隧道掘进机是钻穿硬岩的关键工具。
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3. The engineers used advanced hard-rock tunnel boring techniques to overcome the challenges of the project.
工程师们使用了先进的硬岩隧道掘进技术来克服项目的挑战。